Nerve innervations and pathways

Question 1

what spinal nerves for the brachial plexus?

Answer 1

C5-C8/T1

Question 2

what are the three trunks of the brachial plexus?

Answer 2

superior
middle
inferior

Question 3

what are the three cords of the brachial plexus?

Answer 3

lateral
posterior
medial

Question 4

where do the roots of the brachial plexus pass through?

Answer 4

gap between anterior and middle scalene and subclavian artery

Question 5

where does the axillary originate?

Answer 5

C5-C6

Question 6

what does the axillary nerve innervate?

Answer 6

deltoid
teres minor
super-lateral skin of arm

Question 7

where does the musculocutaneous nerve originate?

Answer 7

C5-C7

Question 8

what does the musculocutaneous nerve innervate?

Answer 8

coracobrachialis
bicep brachii
brachialis
lateral skin of forearm

Question 9

where does the radial nerve originate?

Answer 9

C5-T1

Question 10

what does the radial nerve innervate?

Answer 10

posterior arm and forearm
skin of the posterior and inferolateral arm
posterior forearm skin and dorsum of hand
proximal lateral 3 1/2 digits

Question 11

where does the median nerve originate?

Answer 11

lateral root: C6-C7
medial root: C8-T1

Question 12

what does the median nerve innervate?

Answer 12

-anterior forearm
-skin of the palm and Palmer and distal dorsal aspect of lateral 3 1/2 digits
-NOT the flexor carpi ulnas and ulnar half of flexor digiturm profundus
-intrinsic muscle

Question 13

where does the ulnar nerve originate?

Answer 13

C8-T1

Question 14

what does the ulnar nerve innervate?

Answer 14

flexor digitorum ulnaris and ulnar half of flexor digtiorum profundus
intrinsic muscles of the Hand
skin of the hand medial and medial 1 1/2 digits

Question 15

where does the lateral pectoral nerve innervate?

Answer 15

pectorals major

Question 16

where does medial pectoral nerve innervate?

Answer 16

pectoralis minor and sternocostal part of pectorals major

Question 17

where does the upper subscapular nerve innervate?

Answer 17

superior portion of subsacpularis

Question 18

where does the lower sub scapular nerve innervate?

Answer 18

inferior portion of subscapularis and teres minor

Question 19

where does the thoracodorsal nerve innervate?

Answer 19

latissimus dorsi

Question 20

where does the dorsal scapular nerve innervate?

Answer 20

rhomboids

Question 21

where does the long thoracic nerve innervate?

Answer 21

serrates anterior

Question 22

where does the suprascapular nerve innervate?

Answer 22

supraspinatus
infraspinatus
GH

Question 23

where does the subclavian nerve innervate?

Answer 23

subclavius and SC

Question 24

where are most nerves of the upper limbs derived from?

Answer 24

brachial plexus

Question 25

where are the nerves of the shoulder derived from?

Answer 25

cervical plexus

Question 26

what does the supraclavicular nerve supply?

Answer 26

skin over clavicle and superolateral pec. major

Question 27

what does the superior lateral cutaneous nerve of the arm supply?

Answer 27

lower deltoid and lateral mid arm

Question 28

what does the inferior lateral cutaneous nerve of the arm supply?

Answer 28

skin over the inferolateral aspect of the arm

Question 29

where does the intercostobrachial nerve supply?

Answer 29

skin over axilla and medial aspect of the arm

Question 30

where does the lumbar plexus arise from?

Answer 30

L1-L4

Question 31

what structures does the lumbar plexus pass?

Answer 31

superficial and deep psoas major anterior QL

Question 32

where does the lumbar plexus supply?

Answer 32

anterolateral abdominal wall external genitalia lower limbs (parts)

Question 33

where does the femoral nerve originate?

Answer 33

L2-L4

Question 34

what does the femoral nerve innervate?

Answer 34

lliacus flexors of the hip extensors of knee

Question 35

where does the obturator nerve originate?

Answer 35

L2-L4

Question 36

what does the obturator nerve innervate?

Answer 36

adductor muscles

Question 37

where does the lumbosarcal trunk originate?

Answer 37

L4-L5

Question 38

where does the lateral cutaneous of the thigh nerve supply?

Answer 38

anterior lateral thigh

Question 39

where does the anterior cutaneous nerve of the thigh supply?

Answer 39

anterior and medial thigh

Question 40

what makes up the sacral plexus?

Answer 40

L4-S4

Question 41

where is the sacral plexus located?

Answer 41

lesser pelvis through the great sciatic foramen

Question 42

where does the sciatic nerve originate?

Answer 42

L4-S3

Question 43

where does the sciatic nerve originate?

Answer 43

hip joint flexors of the knee all muscles of the leg and foot

Question 44

what is the largest nerve in the body?

Answer 44

sciatic

Question 45

where does the sciatic nerve split into the tibial and common fibular nerve?

Answer 45

popliteal fossa

Question 46

what nerve supplies the long head of bicep femoris?

Answer 46

tibial branch

Question 47

what nerve supplies the short head of bicep femoris?

Answer 47

fibular branch

Question 48

where does the pudendal nerve originate?

Answer 48

S2-S4

Question 49

what does the pudendal nerve innervate?

Answer 49

structures of perineum sensations of external gantialia perineal muscles external urethral sphincter external anal sphincter

Question 50

where does the superior gluteal nerve originate?

Answer 50

L4-S1

Question 51

what does the superior gluteal nerve innervate?

Answer 51

glut med glut min tensor fasciae latae

Question 52

where does the inferior gluteal nerve originate?

Answer 52

L5-S2

Question 53

what does the inferior gluteal nerve innervate?

Answer 53

glut max

Question 54

where does the saphenous nerve originate?

Answer 54

femoral nerve

Question 55

what does the saphenous nerve innervate?

Answer 55

skin of the medial ankle and foot

Question 56

where does the tibial nerve originate?

Answer 56

sciatic nerve

Question 57

what does the tibial nerve supply?

Answer 57

posterior muscles of the leg and knee joint

Question 58

where does the common fibular nerve originate?

Answer 58

sciatic nerve

Question 59

what does the common fibular nerve innervate ?

Answer 59

lateral posterior leg and knee joint

Question 60

where does the superficial fibular nerve originate?

Answer 60

common fibular nerve

Question 61

what does the superficial fibular nerve innervate?

Answer 61

fib long and brevis skin on distal third of anterior surface of the leg and dorsum of foot

Question 62

where does the deep fibular nerve originate?

Answer 62

common fibular nerve

Question 63

where does the deep fibular nerve innervate?

Answer 63

anterior muscles of the leg and dorsum foot supplies skim of 1st interdigital cleft

Question 64

what nerve winds around the humerus to the deep deltoid?

Answer 64

axillary